Burner control system

Details Burner control system Burner control system

1975-12-04

1977-07-12

Wayner, William E.

Automatic temperature and humidity regulation

Closed fluid heaters

Top burner control

236 1EB, 236 80C, 236 91F, 237 8R, F24D 300

Patent

active

040349110

ABSTRACT:
A burner control system for a hot water boiler is responsive to both outlet water temperature and return water temperature to provide a relatively constant outlet water temperature regardless of variations in heat output requirements. A first thermistor responsive to return water temperature is effective to provide on-off control of gas flow to the burner. A second thermistor responsive to outlet water temperature is effective to vary the rate of gas flow to the burner so as to maintain a predetermined outlet water temperature. A timing circuit is effective each time the burner is turned on to delay a high rate of gas flow to the burner.

REFERENCES:
patent: 2303382 (1942-12-01), Newhouse
patent: 3843049 (1974-10-01), Baysinger

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